feat: Use uuid v7 in stub database adapter

[Josh-McFarlin]

Why

Since developers may use UUID v7 for the id field of entities, we should set the default id field in the stub database adapter to v7 since its format is backwards compatible with v4.

How

• Added uuidv7 package
• Replaced uuid v4 function with v7 function for stub database adapter

Test Plan

Run new uuidv7 test case in packages/entity/src/utils/testing/__tests__/StubDatabaseAdapter-test.ts

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (af495a9) to head (7358048).

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #234   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           69        69           
  Lines         1892      1892           
  Branches       265       265           
=========================================
  Hits          1892      1892           

Flag	Coverage Δ
integration	100.00% <100.00%> (ø)
unittest	100.00% <100.00%> (ø)

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